Hello all,

I am in need of a new engine for my 1998 F150. The bad motor is the Windsor (VIN 6). I have many options with rebuilts, but I would like to know the difference between all other 4.6 liter Ford motors out there.

For instance can a 4.6 SOHC motor from a 2001 Crown Victoria fit in my F150?
Can this motor fit in my truck?
http://cgi.ebay.com/ebaymotors/01-05...QQcmdZViewItem

What needs to be exact for a match with my truck, year of the motor, vehicle origin, VIN code?

Thank you.

 

that should work... but if you want 100% perfect fitup, get one out of your year of truck, so all the wiring and everything is the same, even though it should be for any of them. the 99+ I believe, have the PI heads, i know its 99+ for the 5.4, not 100% sure about the 4.6.

 

This e-bay motor says no PI heads. Can you tell me what PI heads are?

Thanks.

 

It not a truck motor - diff. manifold as well..

 

2001 and up for PI 4.6's in F150's. Even so, there are lots of 01's that are still non-PI from Ford using up leftovers from the prior year.

So if its 2001 and up, it's about a 75% chance it's PI. 2002+ all 4.6's were PI.

 

So can I use a 2002-05 4.6 motor in my 1998 F150?

Are the PI heads compatible with the non-PI head intake and exhaust manifold?

Thanks.

 

the non pi intake willl not work on the pi motor, the exhaust may line up but the egr tube may need modifications

 

[QUOTE=cyman73]So can I use a 2002-05 4.6 motor in my 1998 F150?

1998 - 2003 5.4L or 4.6L

If you get a PI , it's to your benefit , but you will need a tune for it to rune correctly.

There 's a little more work in hooking a 5.4 up , but it's not bad..So you can consider both..

You have to make sure you get the whole motor - intake, everything..


Are the PI heads compatible with the non-PI head intake and exhaust manifold? no

 

HI!... All you want to know about the 4.6.

http://www.babcox.com/editorial/ar/eb40228.htm

Heres the difference in the NON "P.I" to "P.I" heads :